src/gallium/state_trackers/wgl/stw_device.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include <windows.h>
  29
  30 #include "glapi/glapi.h"
  31 #include "util/u_debug.h"
  32 #include "util/u_math.h"
  33 #include "util/u_memory.h"
  34 #include "pipe/p_screen.h"
  35
  36 #include "stw_device.h"
  37 #include "stw_winsys.h"
  38 #include "stw_pixelformat.h"
  39 #include "stw_icd.h"
  40 #include "stw_tls.h"
  41 #include "stw_framebuffer.h"
  42 #include "stw_st.h"
  43
  44
  45 struct stw_device *stw_dev = NULL;
  46
  47 static int
  48 stw_get_param(struct st_manager *smapi,
  49               enum st_manager_param param)
  50 {
  51    switch (param) {
  52    case ST_MANAGER_BROKEN_INVALIDATE:
  53       /*
  54        * Force framebuffer validation on glViewport.
  55        *
  56        * Certain applications, like Rhinoceros 4, uses glReadPixels
  57        * exclusively (never uses SwapBuffers), so framebuffers never get
  58        * resized unless we check on glViewport.
  59        */
  60       return 1;
  61    default:
  62       return 0;
  63    }
  64 }
  65
  66 boolean
  67 stw_init(const struct stw_winsys *stw_winsys)
  68 {
  69    static struct stw_device stw_dev_storage;
  70    struct pipe_screen *screen;
  71
  72    debug_disable_error_message_boxes();
  73
  74    debug_printf("%s\n", __FUNCTION__);
  75
  76    assert(!stw_dev);
  77
  78    stw_tls_init();
  79
  80    stw_dev = &stw_dev_storage;
  81    memset(stw_dev, 0, sizeof(*stw_dev));
  82
  83 #ifdef DEBUG
  84    stw_dev->memdbg_no = debug_memory_begin();
  85 #endif
  86
  87    stw_dev->stw_winsys = stw_winsys;
  88
  89    stw_dev->stapi = stw_st_create_api();
  90    stw_dev->smapi = CALLOC_STRUCT(st_manager);
  91    if (!stw_dev->stapi || !stw_dev->smapi)
  92       goto error1;
  93
  94    screen = stw_winsys->create_screen();
  95    if(!screen)
  96       goto error1;
  97
  98    if(stw_winsys->get_adapter_luid)
  99       stw_winsys->get_adapter_luid(screen, &stw_dev->AdapterLuid);
 100
 101    stw_dev->smapi->screen = screen;
 102    stw_dev->smapi->get_param = stw_get_param;
 103    stw_dev->screen = screen;
 104
 105    stw_dev->max_2d_levels =
 106          screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
 107    stw_dev->max_2d_length = 1 << (stw_dev->max_2d_levels - 1);
 108
 109    InitializeCriticalSection(&stw_dev->ctx_mutex);
 110    InitializeCriticalSection(&stw_dev->fb_mutex);
 111
 112    stw_dev->ctx_table = handle_table_create();
 113    if (!stw_dev->ctx_table) {
 114       goto error1;
 115    }
 116
 117    stw_pixelformat_init();
 118
 119    return TRUE;
 120
 121 error1:
 122    FREE(stw_dev->smapi);
 123    if (stw_dev->stapi)
 124       stw_dev->stapi->destroy(stw_dev->stapi);
 125
 126    stw_dev = NULL;
 127    return FALSE;
 128 }
 129
 130
 131 boolean
 132 stw_init_thread(void)
 133 {
 134    return stw_tls_init_thread();
 135 }
 136
 137
 138 void
 139 stw_cleanup_thread(void)
 140 {
 141    stw_tls_cleanup_thread();
 142 }
 143
 144
 145 void
 146 stw_cleanup(void)
 147 {
 148    DHGLRC dhglrc;
 149
 150    debug_printf("%s\n", __FUNCTION__);
 151
 152    if (!stw_dev)
 153       return;
 154
 155    /*
 156     * Abort cleanup if there are still active contexts. In some situations
 157     * this DLL may be unloaded before the DLL that is using GL contexts is.
 158     */
 159    stw_lock_contexts(stw_dev);
 160    dhglrc = handle_table_get_first_handle(stw_dev->ctx_table);
 161    stw_unlock_contexts(stw_dev);
 162    if (dhglrc) {
 163       debug_printf("%s: contexts still active -- cleanup aborted\n", __FUNCTION__);
 164       stw_dev = NULL;
 165       return;
 166    }
 167
 168    handle_table_destroy(stw_dev->ctx_table);
 169
 170    stw_framebuffer_cleanup();
 171
 172    DeleteCriticalSection(&stw_dev->fb_mutex);
 173    DeleteCriticalSection(&stw_dev->ctx_mutex);
 174
 175    FREE(stw_dev->smapi);
 176    stw_dev->stapi->destroy(stw_dev->stapi);
 177
 178    stw_dev->screen->destroy(stw_dev->screen);
 179
 180    /* glapi is statically linked: we can call the local destroy function. */
 181 #ifdef _GLAPI_NO_EXPORTS
 182    _glapi_destroy_multithread();
 183 #endif
 184
 185 #ifdef DEBUG
 186    debug_memory_end(stw_dev->memdbg_no);
 187 #endif
 188
 189    stw_tls_cleanup();
 190
 191    stw_dev = NULL;
 192 }
 193
 194
 195 void APIENTRY
 196 DrvSetCallbackProcs(
 197    INT nProcs,
 198    PROC *pProcs )
 199 {
 200    size_t size;
 201
 202    if (stw_dev == NULL)
 203       return;
 204
 205    size = MIN2(nProcs * sizeof *pProcs, sizeof stw_dev->callbacks);
 206    memcpy(&stw_dev->callbacks, pProcs, size);
 207
 208    return;
 209 }
 210
 211
 212 BOOL APIENTRY
 213 DrvValidateVersion(
 214    ULONG ulVersion )
 215 {
 216    /* ulVersion is the version reported by the KMD:
 217     * - via D3DKMTQueryAdapterInfo(KMTQAITYPE_UMOPENGLINFO) on WDDM,
 218     * - or ExtEscape on XPDM and can be used to ensure the KMD and OpenGL ICD
 219     *   versions match.
 220     *
 221     * We should get the expected version number from the winsys, but for now
 222     * ignore it.
 223     */
 224    (void)ulVersion;
 225    return TRUE;
 226 }